ggaoed and ro filesystem during heavy write

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Hi,

I experience some problems with the latest ggaoed version and a fresh ubuntu 14.04 aoe client (from the daily snapshots).

http://code.google.com/p/ggaoed/source/list

The kernel version on the client side is 3.13.0-3-generic


# modinfo aoe
filename:       /lib/modules/3.13.0-3-generic/kernel/drivers/block/aoe/aoe.ko
version:        85
description:    AoE block/char driver for 2.6.2 and newer 2.6 kernels
author:         Sam Hopkins <sah@xxxxxxxxxx>
license:        GPL
srcversion:     5F0AC5D858A1164C5170585

The client is a testing box but the server is in productive state for years. So I can't change the server config.


I did a tcpdump and see that the server stops sending a response to the last write request of a series of write requests.
9 seconds after the client waited for responses without receiving any paket from the target it issues a "Query Config Information Request" and marks the device as read only. This results in a read-only filesystem.
The responses to the "Query Config Information Requests" can be seen right after the requests.

I can "repair" this with an aoe-revalidate and remounting rw.
But this appears to happen right with the next longer write operation.

I'm stuck here.

It seems the client doesn't resend unresponded requests. Is this on purpose?

Thanks
Lars

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